This is a iOS App Icon Shape Filled icon. We've made it in iOS style, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 12,900 icons, all in the same style and quality.
This icon is made of a dashed line in the shape of a square with rounded corners, inside the square are two circles with one inside the other. Also inside the square is two lines shaped like an X they are drawn on top of the circles. The point they cross at is the center of the icon.